Breakfast in an Akron diner

7/6/12 8:55 AM EDT

President Obama began day two of his "Betting on America" bus tour with eggs, bacon and grits and a friendly warning to fellow patrons at Ann's Place diner in Akron:

"Don't do anything wrong while these guys have the cameras on," he told diners while motioning to the press corps traveling with him. "They'll catch you."

Obama dined at Ann's with three workers from the local Goodyear tire factory: Jim DiFalco, who has worked there for 26 years, Keith Ross, who worked there 14 years, and Rick Nixon, a 20-year Goodyear worker who is also the political coordinator for the UAW Local 2L in Akron.

The Obama campaign used the occasion to tout the president's imposition two years ago of stiff tariffs on Chinese-made tires, which it said saved 1,000 jobs in the U.S. tire-manufacturing industry. The campaign also took a jab at Mitt Romney, saying Romney said the imposition of tariffs at the time was “decidedly bad for the nation and our workers.”

The Obama bus tour was scheduled to hit two campaign events Friday, the first in Poland, Ohio, and the last in Pittsburgh.